Keep your iRobot Roomba running at full power with this high-capacity 5000mAh 14.4V Ni-MH battery. 🔄For iRobot Roomba Models Capacity: 5000mAh. 900 Series: 960, 980. 500 Series: 500, 510, 520, 521, 525, 530, 531, 532, 535, 540, 550, 555, 560, 562, 563, 570, 580, 581, 590.
eBay